Podcast
Questions and Answers
What is the definition of average velocity?
What is the definition of average velocity?
Which of the following describes a key difference between speed and velocity?
Which of the following describes a key difference between speed and velocity?
What is the term used for the total movement from an initial position to a final position?
What is the term used for the total movement from an initial position to a final position?
What does the slope of a position-time graph represent?
What does the slope of a position-time graph represent?
Signup and view all the answers
What characterizes an object in uniform motion?
What characterizes an object in uniform motion?
Signup and view all the answers
What happens to the slope of the graph when there is a change in velocity?
What happens to the slope of the graph when there is a change in velocity?
Signup and view all the answers
In a position-time graph, when does an object appear stationary?
In a position-time graph, when does an object appear stationary?
Signup and view all the answers
What measurement is indicated by the value of the slope in terms of units?
What measurement is indicated by the value of the slope in terms of units?
Signup and view all the answers
During which interval is the speed of the object highest in a position-time graph?
During which interval is the speed of the object highest in a position-time graph?
Signup and view all the answers
If an object's position-time graph has a downward slope, what does this indicate?
If an object's position-time graph has a downward slope, what does this indicate?
Signup and view all the answers
Which of the following describes a change in the motion of an object?
Which of the following describes a change in the motion of an object?
Signup and view all the answers
What describes an object moving with constant velocity?
What describes an object moving with constant velocity?
Signup and view all the answers
Which statement applies when an object is at rest?
Which statement applies when an object is at rest?
Signup and view all the answers
How is average velocity calculated over a total distance of 100 km traveled in 2 hours?
How is average velocity calculated over a total distance of 100 km traveled in 2 hours?
Signup and view all the answers
What would indicate a negative acceleration?
What would indicate a negative acceleration?
Signup and view all the answers
What does the slope of a distance vs. time graph represent?
What does the slope of a distance vs. time graph represent?
Signup and view all the answers
In the equations of motion, what does a slope of a velocity vs. time graph represent?
In the equations of motion, what does a slope of a velocity vs. time graph represent?
Signup and view all the answers
Which equation correctly relates speed, distance, and time?
Which equation correctly relates speed, distance, and time?
Signup and view all the answers
What defines constant acceleration in motion?
What defines constant acceleration in motion?
Signup and view all the answers
What will be the distance from the base of a building where a rock hits the ground if it is thrown horizontally with a speed of 14 m/s from a height of 10 m?
What will be the distance from the base of a building where a rock hits the ground if it is thrown horizontally with a speed of 14 m/s from a height of 10 m?
Signup and view all the answers
When a crate is dropped from a plane moving forward, landing 120 m away, what is the formula to find the speed v of the plane if dropped from a height of 85.0 m?
When a crate is dropped from a plane moving forward, landing 120 m away, what is the formula to find the speed v of the plane if dropped from a height of 85.0 m?
Signup and view all the answers
What is the height H from which a bullet must be projected horizontally at 350 m/s to land 225 m away?
What is the height H from which a bullet must be projected horizontally at 350 m/s to land 225 m away?
Signup and view all the answers
If a rock is thrown horizontally at 18.0 m/s from a cliff of height 35.0 m, what components of the final velocity need to be calculated before impact?
If a rock is thrown horizontally at 18.0 m/s from a cliff of height 35.0 m, what components of the final velocity need to be calculated before impact?
Signup and view all the answers
On Planet X, a rock travels a horizontal distance of 52.0 m while thrown at a speed of 29.0 m/s from 3.20 m high. What physics concept is primarily used to find the acceleration due to gravity?
On Planet X, a rock travels a horizontal distance of 52.0 m while thrown at a speed of 29.0 m/s from 3.20 m high. What physics concept is primarily used to find the acceleration due to gravity?
Signup and view all the answers
What is a scalar quantity?
What is a scalar quantity?
Signup and view all the answers
What is the displacement of a train initially located 14 km South when it moves 30 km North?
What is the displacement of a train initially located 14 km South when it moves 30 km North?
Signup and view all the answers
What will be the time of flight for a rock thrown horizontally from a height of 10 m?
What will be the time of flight for a rock thrown horizontally from a height of 10 m?
Signup and view all the answers
If a crate falls from a moving plane and lands 120 m away, which of the following factors will directly affect how far it lands from the drop point?
If a crate falls from a moving plane and lands 120 m away, which of the following factors will directly affect how far it lands from the drop point?
Signup and view all the answers
If an object moves from a position 37 m East to 171 m East, and then to 84 m West, what is its overall displacement?
If an object moves from a position 37 m East to 171 m East, and then to 84 m West, what is its overall displacement?
Signup and view all the answers
What is the total distance travelled by an object that moves 16 km North, 26 km South, and then 40 km North?
What is the total distance travelled by an object that moves 16 km North, 26 km South, and then 40 km North?
Signup and view all the answers
What is the acceleration due to gravity if a rock is thrown horizontally from a height of 3.20 m and lands 52.0 m away with a speed of 29.0 m/s?
What is the acceleration due to gravity if a rock is thrown horizontally from a height of 3.20 m and lands 52.0 m away with a speed of 29.0 m/s?
Signup and view all the answers
If an object originally located 72 m above a cliff falls to a position 18 m below the cliff, what is its displacement?
If an object originally located 72 m above a cliff falls to a position 18 m below the cliff, what is its displacement?
Signup and view all the answers
An object experiences a displacement of 1.13 m to the right and ends up 25 cm right of the origin. What is its original position?
An object experiences a displacement of 1.13 m to the right and ends up 25 cm right of the origin. What is its original position?
Signup and view all the answers
If a motion results in a distance of 71.33 cm and an overall displacement of 16.19 cm right, which is true?
If a motion results in a distance of 71.33 cm and an overall displacement of 16.19 cm right, which is true?
Signup and view all the answers
What is the resulting displacement of an object that travels 40 km North, 26 km South, and then 16 km North?
What is the resulting displacement of an object that travels 40 km North, 26 km South, and then 16 km North?
Signup and view all the answers
What is the total distance traveled when moving from 1450 m South to 925 m North?
What is the total distance traveled when moving from 1450 m South to 925 m North?
Signup and view all the answers
How far does a MIG-25 travel during a pilot’s blink if its speed is 2110 mi/h?
How far does a MIG-25 travel during a pilot’s blink if its speed is 2110 mi/h?
Signup and view all the answers
What is the average speed of a car that travels at 85 km/h for 4 hours and then 75 km/h for 3 hours?
What is the average speed of a car that travels at 85 km/h for 4 hours and then 75 km/h for 3 hours?
Signup and view all the answers
If an object moves at an average velocity of 7.40 km/h South for 3 hours, what is its final position relative to the origin?
If an object moves at an average velocity of 7.40 km/h South for 3 hours, what is its final position relative to the origin?
Signup and view all the answers
During which intervals is the object moving to the left?
During which intervals is the object moving to the left?
Signup and view all the answers
How long does it take to travel a distance of 9.324 km at an average velocity of approximately 3.3 × 10³ m/s?
How long does it take to travel a distance of 9.324 km at an average velocity of approximately 3.3 × 10³ m/s?
Signup and view all the answers
What is the average velocity of an object that has a displacement of 9.6 km North over a period of time?
What is the average velocity of an object that has a displacement of 9.6 km North over a period of time?
Signup and view all the answers
When is the object furthest right of the origin during its motion on the graph?
When is the object furthest right of the origin during its motion on the graph?
Signup and view all the answers
Study Notes
Physics 20 Unit 1: Kinematics
- This unit covers the fundamental concepts of motion, including scalar and vector quantities, uniform motion, and uniformly accelerated motion in one and two dimensions.
Key Concepts
- Scalar Quantities: Quantities with only magnitude (e.g., distance, speed, time).
- Vector Quantities: Quantities with both magnitude and direction (e.g., displacement, velocity, acceleration).
- Uniform Motion: Motion with a constant velocity, meaning the object travels equal distances in equal time intervals, resulting in a straight line when plotted on a position-time graph.
- Uniformly Accelerated Motion: Motion with a constant acceleration, leading to a curved line on a position-time graph, and a straight line on a velocity-time graph.
- Two-Dimensional Motion: Motion that has components in both the horizontal and vertical directions.
Specific Knowledge Outcomes
- Students should be able to define and use displacement, velocity, and acceleration, both qualitatively and quantitatively.
- They should understand the distinction between scalar and vector quantities.
- Comprehending the motions of uniform and uniformly accelerated motion, both through written, numerical, and graphical representations.
- Understanding how to interpret two-dimensional motion using vector components.
Specific Skill Outcomes
- Analyzing data and applying mathematical and conceptual models to motion problems.
- Constructing graphs to demonstrate relationships between displacement, velocity, acceleration, and time, for both uniform and uniformly accelerated motion.
- Solving projectile motion problems near Earth's surface (ignoring air resistance) and analyzing a graph of empirical data to analyze motion.
- Relate acceleration to the slope of, and displacement to the area under, a velocity-time graph
- Using correct SI units, communicating conclusions with numeric and symbolic representations, and interpreting graphical data.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your understanding of average velocity and key concepts of motion with this quiz. It covers definitions, differences between speed and velocity, and interpretation of position-time graphs. Perfect for students learning about physics and kinematics!
